loop to repeat steps and plot on same figure

3 views (last 30 days)
Below is the code displayed in full. Is there a way to complete all the same processes but in a shorter script using foor loops to repeat the plots and combine where there is repetition of the same equations? Hopefully this makes sense :)
Qr = 20.83; % m3/s
B = 13; % m
h = 1.3; % m
V = Qr/(B*h); % m/s
XS_Area=B.*h; % m2
%% 2 instantaneous releases
t1= 5*60; % s
t2= 10*60; % s
Mo= (5*10)/2; % kg
M1=Mo./XS_Area; % kg/m2
C1=(M1./sqrt(4.*3.141.*E.*t1) ).*exp(-(X1-V.*t1).^2./(4.*E.*t1));
C2=(M1./sqrt(4.*3.141.*E.*t2) ).*exp(-(X1-V.*t2).^2./(4.*E.*t2));
C3=C1+C2;
plot(X1,C3,'g-'),xlabel('X(m)'),ylabel('C_o(kg/m^3)'),grid minor,xlim([0 1500]);
hold on;
%% 5 instantaneous releases;
t01=2*60;
t02=4*60;
t03=6*60;
t04=8*60;
t05=10*60;
Mo5=(5*10)/5; % kg
M15=Mo5./XS_Area; % kg/m2
C01=(M15./sqrt(4.*3.141.*E.*t01) ).*exp(-(X1-V.*t01).^2./(4.*E.*t01));
C02=(M15./sqrt(4.*3.141.*E.*t02) ).*exp(-(X1-V.*t02).^2./(4.*E.*t02));
C03=(M15./sqrt(4.*3.141.*E.*t03) ).*exp(-(X1-V.*t03).^2./(4.*E.*t03));
C04=(M15./sqrt(4.*3.141.*E.*t04) ).*exp(-(X1-V.*t04).^2./(4.*E.*t04));
C05=(M15./sqrt(4.*3.141.*E.*t05) ).*exp(-(X1-V.*t05).^2./(4.*E.*t05));
C5=C01+C02+C03+C04+C05;
plot(X1,C5,'b-'),xlabel('X(m)'),ylabel('C_o(kg/m^3)'),grid minor,xlim([0 1500]);
grid minor;
hold on;
%% 10 instantaneous releases;
t001=1*60;
t002=2*60;
t003=3*60;
t004=4*60;
t005=5*60;
t006=6*60;
t007=7*60;
t008=8*60;
t009=9*60;
t010=10*60;
Mo10=(5*10)/10; % kg
M1_10=Mo10./XS_Area; % kg/m2
C001=(M1_10./sqrt(4.*3.141.*E.*t001) ).*exp(-(X1-V.*t001).^2./(4.*E.*t001));
C002=(M1_10./sqrt(4.*3.141.*E.*t002) ).*exp(-(X1-V.*t002).^2./(4.*E.*t002));
C003=(M1_10./sqrt(4.*3.141.*E.*t003) ).*exp(-(X1-V.*t003).^2./(4.*E.*t003));
C004=(M1_10./sqrt(4.*3.141.*E.*t004) ).*exp(-(X1-V.*t004).^2./(4.*E.*t004));
C005=(M1_10./sqrt(4.*3.141.*E.*t005) ).*exp(-(X1-V.*t005).^2./(4.*E.*t005));
C006=(M1_10./sqrt(4.*3.141.*E.*t006) ).*exp(-(X1-V.*t006).^2./(4.*E.*t006));
C007=(M1_10./sqrt(4.*3.141.*E.*t007) ).*exp(-(X1-V.*t007).^2./(4.*E.*t007));
C008=(M1_10./sqrt(4.*3.141.*E.*t008) ).*exp(-(X1-V.*t008).^2./(4.*E.*t008));
C009=(M1_10./sqrt(4.*3.141.*E.*t009) ).*exp(-(X1-V.*t009).^2./(4.*E.*t009));
C010=(M1_10./sqrt(4.*3.141.*E.*t010) ).*exp(-(X1-V.*t010).^2./(4.*E.*t010));
C10 = C001+C002+C003+C004+C005+C006+C007+C008+C009+C010;
plot(X1,C10,'k-'),xlabel('X(m)'),ylabel('C_o(kg/m^3)'),grid minor,xlim([0 1500]);
grid minor;
hold off;
  1 Comment
Rik
Rik on 5 Apr 2022
Numbered variables should be replaced by indexing of an array.
See this discussion.

Sign in to comment.

Accepted Answer

David Hill
David Hill on 5 Apr 2022
%write simple script to run function
Qr = 20.83;
B = 13;
h = 1.3;
E = ?;%unknown
X1=(1:.1:10)';%whatever
T={60*(5:5:10),60*(2:2:10),60*(1:10)};
figure;hold on;
for k=1:length(T)
yourFunction(Qr,B,X1,E,h,T{k});
end
%X1 needs to be column vector, t needs to be row vector, assume E is scalar
function yourFunction(Qr, B, X1, E, h, t)
V = Qr/(B*h);
XS_Area=B.*h;
M=(5*10)/length(t)/XS_Area;
C=sum(M./sqrt(4*pi*E*t).*exp(-(X1-V*t).^2./(4*E*t)),2);
plot(X1,C);
end

More Answers (0)

Categories

Find more on Modify Image Colors in Help Center and File Exchange

Products


Release

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!